File-holder for filing-machines.



PATENTBD JAN. 22, 1907. J A. DENNIS. 7 FILE HOLDER FOR FILING MACHINES.

APPLICATION FILED APR 23. 1906.

lllk lllll hilll UNITED STATES PATENT oEEIoE.

JOSEPH A. DENNIS, OF ARDMORE, INDIAN TERRITORY.

FILE-HOLDER FOR FILING-MACHINES- Specification of Letters Patent.

Patented Jan. 22, 1907.

Application filed April 28, 1906. Serial No. 314,244.

To all whmn it may concern.-

Be it known that I, JosErH A. DENNIS, a citizen of the United States, residing at Ardmore, Chickasaw Nation, Indian Territory, have invented certain new and useful Improvements in File-Holders for Filing-Machines; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in file-holding devices for machines for sharpening gin-saws, &c., and comprises a simple and eflicient apparatus comprising grooved arms having flattened extensions at their ends and provided with a yield ing spring against which a file is adapted to be held by means of a pivotal cam member, thus dispensing with clamping means com- .monly used for holding the file.

My invention consists, further, in various details of construction. and combinations and arrangements of parts, which will be hereinafter fully described, and then specifically defined in the appended claims.

My invention is illustrated in the accompanying drawings, in which Figure l is a top plan view showing the application of my invention. Fig. 2 is a perspective view showing two of the file-carrying arms held in a casing or socket member. Fig. 3 is a sectional view through one of the arms, showing parts in elevation.- Fig. 4 is a cross-sectional view on line 4 4 of Fig. 3, and Fig. 5 is a sectional view taken on line 5 5 of Fig. 3.

Reference now being had to the details of the drawings by letter, A designates a head which is preferably formed of a single piece of metal and provided with slots B in the opposite edges thereof to receive the grooved arms C. Each of said arms is slightly angled, as at D, and the outer end E'of each is flattened, and each flattened end has an aperture F to receive the point G of a file, said file being adapted to rest in the groove of the arm. Projecting from the side walls of each grooved arm are the lugs H, carrying a pivotpin Kfto which is keyed a cam member O, having an integral handle 0. Said cam member has a groove 0 adapted to fit over the file G. N is a spring which is fastened at one end to the bottom wall of the groove of the arm and upon which the file is adapted to rest. Said cam members, one upon each arm, are mounted so that they will contact with the handle end of the file and in such a manner that as the cam is thrown in the position shown in Fig. 3 the inner end of the file will be held against the spring and the.

1. A device for holding files, comprising a grooved arm having its end outwardly bent and flattened with an aperture through said bent portion, a spring seated iii said groove, a cam pivotally mounted in projections upon the said walls of said groove and adapted to swing within the groove and engaging the handle of a file, whereby the latter may be held against the said spring and the bottom of the groove intermediate the spring and said flattened portion, as set forth.

2. A file-holding apparatus, comprising an arm having a groove or channel running longitudinally thereof, a spring countersunken in the bottom of said channel, the outer end of the arm being bent at an angle and fiattened at theextreme end, the bent portion having an aperture therein, the lower marginal edge of said aperture being in alinement with the bottom of the channel, said aperture adapted to receive the tip of a file, the end of which bears against the flattened end thereof, the side walls of the channel having lugs, a pin mounted in said lugs, a cam pivotally mounted upon said pin and adapted to bear against the handle of the file and hold the same in contact with the said spring and against the bottom of the channel intermediate the fixed end of the spring and flattened end of the arm, as set forth.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

JOSEPH A. DENNIS. 

